rajeshkhanna_in 0 Light Poster

HI all,
I have been using a software written in vb6.0 for 2 years. Now all of a sudden the software gives me this error "PCGW32.dll file is missing!". I don't know how to handle it. Even the person from whom I bought the software is nowhere to be found. What do I do? Can anybody help me Please!!!!!!!!!!!
Thanks in advance

Rajesh Khanna